Civilization!
This is the ONLY campground in Yellowstone with full hookups, your neighbors are a bit close, but the campground is spread out in old growth pines and doesn't feel crowded at all. There is a large store, gas station, mechanic and cafe close by. If you are on an extended trip in an RV, you'll definitely want to spend at least a few nights here, so you can rest and recuperate.
Month of VisitSeptember